Thomas Ewing III | |
|---|---|
 Thomas Ewing III in 1913 | |
| Born | May 21, 1862 |
| Died | December 7, 1942 (aged 80) |
| Nationality | American |
| Education | Columbia College of New York, B.A., 1883, M.A., 1886 Georgetown University, LL.B., 1890, LL.D., 1914 |
| Title | Commissioner of the U.S. Patent Office |
| Term | 1913 to 1917 |
| Predecessor | Edward Bruce Moore |
| Successor | James T. Newton |
| Political party | Democratic |
| Spouse | Anna Phillips Cochran |
| Children | Alexandra Thomas IV William Francis Cochran Sherman Ellen Cox Gifford Cochran Bayard |
| Parent(s) | Thomas Ewing Jr. and Ellen Ewing Cox |
| Relatives | Thomas Ewing, Sr., grandfather George Ewing, great grandfather Reasin Beall, great grandfather Alexander Smith Cochran, brother-in-law Newbold Noyes, Jr., grandson |
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Thomas Ewing III (21 May 1862, Leavenworth, Kansas, USA – 7 December 1942, Yonkers, New York) was the 33rd Commissioner of the U.S. Patent Office, serving between 1913 and 1917. He was the son of General Thomas Ewing Jr. and the grandson of Secretary Thomas Ewing, Sr.